Advantages and Disadvantages of Differently Doped YAG Lasers

YAG laser is a solid laser based on a yttrium aluminum garnet. The chemical formula of yttrium aluminum garnet is Y3Al5O15. As with various other solid lasers, the basic components of the YAG laser are the laser working material and the pump resource harmonious vibration cavity.

However, various pump sources are used due to the activation of doping ions in the crystal, and the pump, differently embraced by the dental caries framework, varies. The various other useful structure of the gadget, the YAG laser, can be separated into a range of, for example, according to the output waveform, it can be divided right into constant wave frequency YAG laser, YAG laser, and pulse laser, and so on; According to the functioning wavelength, it can be split right into 1.06 μmYAG laser, frequency-doubled YAG laser, Raman frequency change YAG laser and also tunable YAG laser, etc. Different doping can be separated into Nd: YAG laser, doped Ho, Tm, Er, and more YAG laser; According to the crystal form, it can be divided right into a bar and strip YAG laser. The various output power can be divided into high power and low power YAG laser.

Er: YAG crystal

Er: YAG crystal belongs to the cubic crystal system, an encouraging solid laser material in the mid-infrared band, which can output laser of 3 wavelengths at space temperature: 1.64 μm, 1.78 μm and also 2.94 μm, among which 1.64 μm, as well as 1.78 μm, are in the secure band of human eyes, 2.94 μm is in the hydroxyl absorption peak as well as can be highly soaked up by organic cells, so it has an excellent application possibility in laser medication, laser interaction, laser range measurement, etc.

Nd: YAG crystal

Nd: YAG is one of the laser crystals with superb comprehensive efficiency and vital applications. Due to their premium, fundamental buildings are extensively utilized in commercial, clinical, armed forces, and scientific studies.

Nd: YAG crystal Benefits:

  • High optical quality, reduced loss
  • High gain, low threshold, high effectiveness
  • Ideal for typical high power solid state laser
  • High mechanical toughness, exceptional thermal conductivity, and thermal shock resistance
  • Ideal for all laser working settings (continual, pulse, Q switch, mode locking, frequency doubling, and so on).

Tm: YAG Crystal.

Tm: YAG crystal, thulium-doped yttrium aluminum garnet crystal. Tm: Suitable thulium crystal rod medium for YAG crystals with a 2-micron wavelength thulium laser resource. The self-quenching mechanism of H4 and F4 degrees of Tm: YAG crystals can create two-photon excitation at the top level, potentially providing an effective way for the laser to obtain high quantum efficiency.

Tm: YAG crystals are commonly utilized in LiDAR and other atmospheric detection areas due to their operating wavelength of 2013nm.

Tm: YAG has the following qualities:

  • The fluorescence lifetime of Tm is 9.2ms@6 %.
  • A Tm: YAG crystal is twice as long as a Tm: YAP crystal.
  • Tm: YAG crystals discharge a slightly reduced cross-sectional area than Tm: YAP crystals.
  • The peak absorption band is 785nm.
  • More suitable for the pump of the semiconductor diode.

YAG laser light beam’s high quality is excellent and has the advantages of high effectiveness, affordable, security, safety, precision, and high reliability. A straight slot is little in particular applications, utilizing YAG laser devices and handling rate, high effectiveness, and far better financial benefit. The cut surface area is smooth and also can obtain a bigger depth-to-diameter proportion, and the heat contortion, deep large, can be hard, fragile, and soft on various materials such as handling.

There is no tool wear or replacement. No mechanical becomes easy to automate. High processing pump performance can be achieved under unique problems, approximately about 20%. With the performance renovation, the laser tool’s heat load lowers. Thus, it considerably improves the top quality of the light beam’s long life, high integrity, little size, lightweight, and also suitable for miniaturization applications.

YAG laser is appropriate for laser cutting, welding, and also the boring of metal materials: such as carbon steel, stainless steel, alloy steel, aluminum and also an alloy, copper and also an alloy, titanium as well as alloy, nickel-molybdenum alloy, and other materials. It is extensively used in air travel, aerospace, weapons, ships, petrochemical, medical, instrumentation, microelectronics, auto, and various other markets. It boosts refining high quality and functioning performance. Furthermore, the YAG laser can offer a precise and quick approach to clinical study.

Compared to various other lasers, the YAG laser can work in two ways: pulse and continuous. Q-switching and mod-locking innovation can obtain its pulse result to ensure that its processing variety is larger than that of a CO2 laser. The outcome wavelength of the YAG laser is 1.06, which is simply one order of size smaller than the wavelength of the carbon dioxide laser, 10.06 um, so it has high coupling effectiveness with metal and excellent handling performance.

One of the most vital is that the YAG laser can be combined with fiber. With the help of time and power division, a multiplexing system can conveniently send a laser light beam to several terminals or long-distance stations, which is convenient for laser processing to accomplish flexibility.